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Journal ArticleDOI

Combination of Advanced Oxidation Processes and biological treatments for wastewater decontamination—A review

15 Sep 2011-Science of The Total Environment (Sci Total Environ)-Vol. 409, Iss: 20, pp 4141-4166
TL;DR: The main conclusions arrived at from the overall assessment of the literature are that more work needs to be done on degradation kinetics and reactor modeling of the combined process, and also dynamics of the initial attack on primary contaminants and intermediate species generation.
About: This article is published in Science of The Total Environment.The article was published on 2011-09-15. It has received 2046 citations till now. The article focuses on the topics: Wastewater & Industrial wastewater treatment.
Citations
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Journal ArticleDOI
TL;DR: This review outlined the latest applications of iron oxide nanomaterials in wastewater treatment, and gaps which limited their large-scale field applications, as well as the outlook for potential applications and further challenges.

1,632 citations


Cites background from "Combination of Advanced Oxidation P..."

  • ...In combined chemical and biological wastewater treatment, it is also very important to keep in mind how the characteristics of each individual treatment process can improve the destruction of a persistent contaminant (Oller et al., 2011)....

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  • ...Therefore, the following four conditions must be considered in the decision on wastewater treatment technologies: (1) treatment flexibility and final efficiency, (2) reuse of treatment agents, (3) environmental security and friendliness, and (4) low cost (Zhang and Fang, 2010; Oller et al., 2011)....

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  • ...Selection of the best method and material for wastewater treatment is a highly complex task, which should consider a number of factors, such as the quality standards to be met and the efficiency as well as the cost (Huang et al., 2008; Oller et al., 2011)....

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  • ...Appropriate techniques must be combined to provide technically sound and economically feasible options (Oller et al., 2011)....

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Journal ArticleDOI
TL;DR: A thorough review of alternative non-iron Fenton catalysts and their reactivity towards hydrogen peroxide activation is presented, describing in detail the complex mechanisms and emphasizes on practical limitations influencing their environmental applications.

1,618 citations

Journal ArticleDOI
TL;DR: Different treatment methods to treat the textile wastewater have been presented along with cost per unit volume of treated water, and the possible remedial measures to treat different types of effluent generated from each textile operation are recommended.

1,335 citations

Journal ArticleDOI
TL;DR: In this critical review, some of the most promising electrochemical tools for the treatment of wastewater contaminated by organic pollutants are discussed in detail and the critical assessment of the reactors that can be used to put these technologies into practice is devoted.
Abstract: Traditional physicochemical and biological techniques, as well as advanced oxidation processes (AOPs), are often inadequate, ineffective, or expensive for industrial water reclamation. Within this context, the electrochemical technologies have found a niche where they can become dominant in the near future, especially for the abatement of biorefractory substances. In this critical review, some of the most promising electrochemical tools for the treatment of wastewater contaminated by organic pollutants are discussed in detail with the following goals: (1) to present the fundamental aspects of the selected processes; (2) to discuss the effect of both the main operating parameters and the reactor design on their performance; (3) to critically evaluate their advantages and disadvantages; and (4) to forecast the prospect of their utilization on an applicable scale by identifying the key points to be further investigated. The review is focused on the direct electrochemical oxidation, the indirect electrochemical oxidation mediated by electrogenerated active chlorine, and the coupling between anodic and cathodic processes. The last part of the review is devoted to the critical assessment of the reactors that can be used to put these technologies into practice.

1,197 citations

Journal ArticleDOI
Haoran Dong1, Guangming Zeng1, Lin Tang1, Changzheng Fan1, Chang Zhang1, Xiaoxiao He1, Yan He1 
TL;DR: This review summarizes the recently developed countermeasures for improving the performance of TiO2-based photocatalytic degradation of organic pollutants with respect to the visible-light photocatallytic activity, adsorption capacity, stability and separability.

946 citations

References
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Journal ArticleDOI
TL;DR: In this article, the rate constants for over 3500 reaction are tabulated, including reaction with molecules, ions and other radicals derived from inorganic and organic solutes, and the corresponding radical anions, ⋅O− and eaq−, have been critically pulse radiolysis, flash photolysis and other methods.
Abstract: Kinetic data for the radicals H⋅ and ⋅OH in aqueous solution,and the corresponding radical anions, ⋅O− and eaq−, have been critically pulse radiolysis, flash photolysis and other methods. Rate constants for over 3500 reaction are tabulated, including reaction with molecules, ions and other radicals derived from inorganic and organic solutes.

9,887 citations

Journal ArticleDOI
20 Mar 2008-Nature
TL;DR: Some of the science and technology being developed to improve the disinfection and decontamination of water, as well as efforts to increase water supplies through the safe re-use of wastewater and efficient desalination of sea and brackish water are highlighted.
Abstract: One of the most pervasive problems afflicting people throughout the world is inadequate access to clean water and sanitation. Problems with water are expected to grow worse in the coming decades, with water scarcity occurring globally, even in regions currently considered water-rich. Addressing these problems calls out for a tremendous amount of research to be conducted to identify robust new methods of purifying water at lower cost and with less energy, while at the same time minimizing the use of chemicals and impact on the environment. Here we highlight some of the science and technology being developed to improve the disinfection and decontamination of water, as well as efforts to increase water supplies through the safe re-use of wastewater and efficient desalination of sea and brackish water.

6,967 citations


"Combination of Advanced Oxidation P..." refers background in this paper

  • ..., 2006a), which are highly reactive and non-selective as stated in some key revisionworks (Gogate and Pandit, 2004a,b; Pera-Titus et al., 2004; Devipriyas and Yesodharan, 2005; Pignatello et al., 2006; Comninellis et al., 2008; Shannon et al., 2008)....

    [...]

  • ...…2003; Sarria et al., 2004; García-Montaño et al., 2006a), which are highly reactive and non-selective as stated in some key revisionworks (Gogate and Pandit, 2004a,b; Pera-Titus et al., 2004; Devipriyas and Yesodharan, 2005; Pignatello et al., 2006; Comninellis et al., 2008; Shannon et al., 2008)....

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Journal ArticleDOI
TL;DR: In this paper, the complex mechanisms of Fenton and Fenton-like reactions and the important factors influencing these reactions, from both a fundamental and practical perspective, in applications to water and soil treatment, are discussed.
Abstract: Fenton chemistry encompasses reactions of hydrogen peroxide in the presence of iron to generate highly reactive species such as the hydroxyl radical and possibly others. In this review, the complex mechanisms of Fenton and Fenton-like reactions and the important factors influencing these reactions, from both a fundamental and practical perspective, in applications to water and soil treatment, are discussed. The review covers modified versions including the photoassisted Fenton reaction, use of chelated iron, electro-Fenton reactions, and Fenton reactions using heterogeneous catalysts. Sections are devoted to nonclassical pathways, by-products, kinetics and process modeling, experimental design methodology, soil and aquifer treatment, use of Fenton in combination with other advanced oxidation processes or biodegradation, economic comparison with other advanced oxidation processes, and case studies.

3,218 citations


"Combination of Advanced Oxidation P..." refers background in this paper

  • ..., 2006a), which are highly reactive and non-selective as stated in some key revisionworks (Gogate and Pandit, 2004a,b; Pera-Titus et al., 2004; Devipriyas and Yesodharan, 2005; Pignatello et al., 2006; Comninellis et al., 2008; Shannon et al., 2008)....

    [...]

  • ...…2003; Sarria et al., 2004; García-Montaño et al., 2006a), which are highly reactive and non-selective as stated in some key revisionworks (Gogate and Pandit, 2004a,b; Pera-Titus et al., 2004; Devipriyas and Yesodharan, 2005; Pignatello et al., 2006; Comninellis et al., 2008; Shannon et al., 2008)....

    [...]